We accidentally return success if dmaengine_submit() fails. The fix is
to preserve the error code from dma_submit_error().
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
index 8de72f3fba4d..387e685063fc 100644
--- a/drivers/ntb/test/ntb_perf.c
+++ b/drivers/ntb/test/ntb_perf.c
@@ -828,7 +828,8 @@ static int perf_copy_chunk(struct perf_thread *pthr,
tx->callback_param = pthr;
dma_set_unmap(tx, unmap);
- if (dma_submit_error(dmaengine_submit(tx))) {
+ ret = dma_submit_error(dmaengine_submit(tx));
+ if (ret) {
dmaengine_unmap_put(unmap);
goto err_free_resource;
}
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